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AS 368A4-12 — BOLT,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

AS 368A4-12: BOLT,MACHINE.

The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 FASTENER, head_style: FLAT COUNTERSUNK, grip_length: 0.750 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.486 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN, thread_length: 0.456 INCHES MINIMUM AND 0.486 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-428-9510, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
AS 368A4-12
NSN: 5306-01-428-9510
FSC: 5306 — Bolts
CAGE: 84256 — AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56400 FASTENER
head_styleFLAT COUNTERSUNK
grip_length0.750 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.486 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
thread_length0.456 INCHES MINIMUM AND 0.486 INCHES MAXIMUM IN
fastener_length1.191 INCHES MINIMUM AND 1.221 INCHES MAXIMUM IN
locking_featureDETENT BALL HEAD
special_featuresFURNISHED WITH PLUNGER AND PAWL AMS5629; BALL QQ-S-763 COMP 440C
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
nominal_thread_diameter0.250 INCHES IN
NSN5306-01-428-9510
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: AS 368A4-12 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FASTENER LENGTH: 1.191 INCHES MINIMUM AND 1.221 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.456 INCHES MINIMUM AND 0.486 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 0.750 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
•
LOCKING FEATURE: DETENT BALL HEAD
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.191 INCHES MINIMUM AND 1.221 INCHES MAXIMUM IN
THREAD LENGTH0.456 INCHES MINIMUM AND 0.486 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH0.750 INCHES MINIMUM AND 0.766 INCHES MAXIMUM IN
LOCKING FEATUREDETENT BALL HEAD
SPECIAL FEATURESFURNISHED WITH PLUNGER AND PAWL AMS5629; BALL QQ-S-763 COMP 440C
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 4
LB87-4-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SLB1424A4-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
03A227A4-12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AS368A5-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS 368A4-12?
AS 368A4-12 is a BOLT,MACHINE.
What parts can replace AS 368A4-12?
There are 4 known substitutes for AS 368A4-12: LB87-4-12, SLB1424A4-12, 03A227A4-12 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS 368A4-12?
AS 368A4-12 is cataloged in the U.S. Government catalog under NSN 5306-01-428-9510. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.